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It is 21 because 21/21 = 1 and 21/7 = 3

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10y ago

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What number can both go into 21 and 14?

7


What number can go into 21 and 35?

1 and 7 both can.


What number does 3 and 7 go into?

21


What number can go in 72 and 21?

3 can go into both these numbers 72/3= 24 21/3= 7


Least common multiple of 3 and 7?

The (LCM) Least Common Multiple of 7 and 3 is 21 because that is the LEAST number that both 3 and 7 go into.


Lcm 3 and 7?

The (LCM) Least Common Multiple of 7 and 3 is 21 because that is the LEAST number that both 3 and 7 go into.


What number is a factor of 21 and a prime number?

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Both 14 and 21 can be divided by their greatest common divisor, which is 7. Thus, they both go into any multiple of 7, such as 7, 14, 21, 28, and so on. Additionally, they both go into 42, which is the least common multiple of the two numbers.


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7


What is 2 over 7 minus 1 over 3?

First you have to make the same denominators: Find the lowest number that 7 and 3 both go into which is 21. So multiply the denominator by the number that makes 21 on both 2/7 and 1/3. Make sure to multiply the number you used on den. on the numerator to. Here are the new fractions: 6/21 and 7/21 Then subtract as normal. Answer would be negative 1/21 or -1/21


What can 7 and 3 go into?

The numbers 7 and 3 can both divide into any multiple of their least common multiple (LCM). The LCM of 7 and 3 is 21, so they can go into any multiple of 21, such as 21, 42, 63, and so on. Additionally, they can also go into any number that is a multiple of either 7 or 3 individually.


What number can evenly go into 21?

1, 3, 7, 21.